A feeling that you get when you are forced, by a NOUN (aka bust), to conduct an act that you feel is just not warranted.

Sitting at your desk at work is not uh bust but, spilling a cup of coffee all over your desk is uh huge fucking bust (unprovoked bust).

Three big bowls of charo beans in one evening is not uh bust (although it really is, just go with it) but the aftermath is uh very astronomical bust.

See more examples below -

Whether its work, shit head boss, co workers, friends, family, etc...Any bust moment you may have at any given time. I.e. you get in a car accident 15 min. after driving your new car off the lot, or you’re in a bathroom and have to release the dragon and suddenly realize there is no TP. What uh fucking bust.